| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
2.3%
|
| 2 | 1 |
0.3%
|
|
| 3 | 10 |
3.3%
|
|
| 4 | 8 |
2.7%
|
|
| 5 | 15 |
5%
|
|
| 6 | 15 |
5%
|
|
| 7 | 18 |
6%
|
|
| 8 | 34 |
11.3%
|
|
| 9 | 24 |
8%
|
|
| 10 | Very effective | 13 |
4.3%
|
| 11 | Don't know | 0 |
0%
|
| NA | 155 |
51.7%
|